Smoke-consumer.



No. 708,362. Patented Sept. 2, I902.

J. P. KELLY.

SMOKE cousumsn.

(Application filed May 13, 1902.) (No Model.) 2 Sheets-Sheet l.

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"0.708362. Patented Sept. 2, I902.

J. P. KELLY.

SMOKE CONSUMER. (Appfic'ation filed May 13, 1902.) (No Model.)

2 sheets shaat 2.

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JOSEPH P. KELLY, OF ST. LOUIS, MISSOURI, ASSIGNOR OF ONE-HALF TO ORA E. OVERPEGK, OF ST. LOUIS, MISSOURI.

SMOKE-CONSUMER.

, SPECIFICATION forming part of Letters Patent No. 708,362, dated September 2, 1902.

Application filed May 13 1902. Serial No. 107,199. (110 model.)

'TO all whom it may concern:

Be it known that I, JOSEPH P. KELLY, of-

beside the fire-box, and a front wall having a fuel-opening, of a baflie-plate connecting the side walls and extending backwardly above the fuel-opening, said bailie-plate comprising front-wall beams embedded into the front wall and extending backwardly nearly half of the distance to the bridge-Wall, a cross-beam having its ends embedded into the side walls, and connections between the cross-beam and the front-wall beams whereby the rear ends of the front-wall beams are supported, and tile of fire-clay or the like having grooves in their end faces and adapted to slide between the front-wall beams, so that the beams are covered and protected from the fire and so that the tile are supported, said tile being longer between the grooves than in a vertical direction or in a direction longitudinal of the front-Wall beams.

Figure 1 is a vertical longitudinal section of a boiler-furnace, showing my invention applied thereto. Fig. 2 is an enlarged detail perspective illustrating the construction of the baffle-plate. Fig. 3 is a cross-section of the battle-plate. Fig. 4 is a sectional detail of the metallic frame supporting the baffleplate. Fig. 5 is a view analogous to Fig. 3 and showing a modified form of front-wall beam. Fig. 6 is a view analogous to Figs. 3 and 5 andshowing a second modified form of front-wall beam.

Referring to the drawings in detail, side walls 6 extend upwardly from the bottom 7 and form an ash-pit 8, and the grates i), mounted above the ash-pit, form the fire-box 10 above the grate and between the walls. The front wall 11 has a fuel-opening 12 to provide access to the fire-box 10. The baffieplate 13 connects the side walls 6 and extends backwardly from the front wall 11 nearly half-way to the bridge-wall 14.

The baffle-plate is constructed in detail as follows: The front-wall beams 15 have their forward ends embedded into the front wall 11, and said beams extend backwardly between the side wall 6 and are inclined slightly downwardly. The cross-beam 16 is placed on top of the front-wall beams 15 near their centers and crosswise thereof, the ends of said cross-beam being supported in the side walls.

In Figs. 2, 3, and t the front-wall beams 15 are in the form of I-beams. In Fig. 5pipes are substituted for the I-beams, and in Fig. 6 railroad -rails are substituted for the I- beams. The cross-beam is an I-beam. Clamps 17 are secured to the front-wall beams 15,With their ends engaging the lower flanges of the cross-beam, so as to connect the front- Wall beams to the cross-beam, the object being to support the rear ends of the front-wall beams and at the same time to keep the crossbeam as far from the lower face of the baffleplate as possible to protect it from the heat.

The tile 18 are formed of fire-clay pressed or molded into the desired form, said tile being of such alength that they will fit between the beams 15, and said tile having grooves 19 in their end faces to interlock with the beams 15, so that the tile may slide into position and be supported by said beams 15. The beams 15 are cut short, thus leaving the spaces 20 at their rear ends, and said spaces are filled with cement 21 to protect the ends of the beams from the heat.

The sides of the baffle-plate are built into the side walls 6. Extra tile 22 are placed on top of the baffle-plate to cover the cross-beam l6 and protect it from the heat.

In constructing the tile 18 it is important that the distance between the grooves be greater than the thickness of the tile longitudinally of the beams and greater than the vertical thickness of the tile, so that the tile will not be weakened by the grooves and break on a line connecting the grooves of one end with the grooves of the other.

When the tile is subjected to great heat and strain, the tendency is to break the tile on the line of its shortest dimension, and if the tile was short between the grooves there would be great liability of the lower half of each tile falling away; but this is overcome by making the tile of the shape and relative dimension shown and described.

As before suggested, the baffle-plate is inclined slightly downwardly and extends back wardly nearly half-way to the bridge-wall.

As the coal upon the grate is partly consumed it is pushed backwardly and new coal added to the front of the grate. The smoke and fire arising from the new coal upon the front part of the grate will strike the baffle-plate and be forced backwardly over the partly-consumed coal, which is very hot, upon the rear end of the grate, and the smoke arising from the new coal will be consumed, and its consumption will make an intense heat, which will pass upwardly from the back part of the grate behind the baffle-plate.

I claim 1. The combination with a boiler-furnace, having a fire-box, side walls extending upwardly from the fire-box, and a front wall having a fuel-opening leading to the fire-box; of a baffle-plate extending backwardly from the front wall above the fuel-opening; said baffle-plate consisting of I-beams having their forward ends embedded into the front wall and extending backwardly, and tile interlocked with the I-beams so as to protect the I-beams from the heat, and so as to be supported by the I-beams substantially as specified.

2. The combination with a boiler-furnace having a fire-box; of a baffle-plate extending backwardly from the front wall above the grate, said battle-plate consisting of beams supported by the front wall and the side walls; and tile having grooves in their ends to receive said beams, thereby covering the beams with the tile and supporting the tile, the distance between the end faces of said grooves being greater than the vertical dimension of the tile, and greater than the horizontal dimension longitudinally of the beams, substantially as specified.

In testimony whereof I aflix my signature in presence of two witnesses.

JOSEPH P. KELLY.

Witnesses:

M. G. IRION, ALFRED A. EIcKs. 

